Newegg offers the refurbished HP DX7400 Intel Core 2 Duo 2.66GHz Desktop PC for $99. This $10 mail-in rebate cuts it to $89. With free shipping, that's $20 under our expired mention from two days ago, the lowest total price we could find for a refurb with similar specs by $53, and a very strong deal for such a configuration. (It's also cheaper than what many retailers charge for the OS alone.) It features an Intel Core 2 Duo 2.66GHz dual-core processor, 2GB RAM, 250GB hard drive, DVD burner, and Windows 7 Pro 64-bit. Deal ends May 15.
A 90-day warranty applies, but it's unclear who backs it.